1 Department of Anaesthesia, Intensive Care and Emergency Medical Services, Ospedale Maggiore, Bologna, Italy.
2 Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Department of Anesthesiology, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
3 Department of Anesthesiology and Pain Therapy, Bern University Hospital, University of Bern, Bern, Switzerland; School of Medicine, Sigmund Freud University Vienna, Vienna, Austria.
4 Emergency Department, Calderdale Royal Hospital, Halifax, United Kingdom.
5 Emergency Department, Antwerp University Hospital, Edegem, Belgium.
6 Warwick Clinical Trials Unit, University of Warwick and Department of Anaesthesia and Intensive Care Medicine, Royal United Hospital, Bath, United Kingdom.
7 Department of Anesthesiology, Oslo University Hospital, Norway.
8 Warwick Clinical Trials Unit and University Hospitals Birmingham NHS Foundation Trust, University of Warwick, Coventry, United Kingdom.
9 Institute of Anaesthesia and Intensive Care, Catholic University of the Sacred Heart, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.
10 Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Cologne, Germany.